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Probability Questions Answers Online Quiz Test

  • 1. In a throw of coin what is the probability of getting head.

    1. 1
    2. 2
    3. 1/2
    4. 0
  • 2. In a throw of coin what is the probability of getting tails.

    1. 1
    2. 2
    3. 1/2
    4. 0
  • 3. Two unbiased coins are tossed. What is probability of getting at most one tail ?

    1. \begin{aligned} \frac{1}{2} \end{aligned}
    2. \begin{aligned} \frac{1}{3} \end{aligned}
    3. \begin{aligned} \frac{3}{2} \end{aligned}
    4. \begin{aligned} \frac{3}{4} \end{aligned}
  • 4. Three unbiased coins are tossed, what is the probability of getting at least 2 tails ?

    1. 1/3
    2. 1/6
    3. 1/2
    4. 1/8
  • 5. In a throw of dice what is the probability of getting number greater than 5

    1. 1/2
    2. 1/3
    3. 1/5
    4. 1/6
  • 6. What is the probability of getting a sum 9 from two throws of dice.

    1. 1/3
    2. 1/9
    3. 1/12
    4. 2/9
  • 7. Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even ?

    1. 3/4
    2. 1/4
    3. 7/4
    4. 1/2
  • 8. In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green?

    1. 2/3
    2. 8/21
    3. 3/7
    4. 9/22
  • 9. A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is

    1. 1/13
    2. 2/13
    3. 1/26
    4. 1/52
  • 10. From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.

    1. 3/13
    2. 1/52
    3. 1/4
    4. None of above
  • 11. A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is

    1. \begin{aligned} \frac{7}{19} \end{aligned}
    2. \begin{aligned} \frac{6}{19} \end{aligned}
    3. \begin{aligned} \frac{5}{19} \end{aligned}
    4. \begin{aligned} \frac{4}{19} \end{aligned}
  • 12. A speaks truth in 75% of cases and B in 80% of cases. In what percentage of cases are they likely to contradict each other, narrating the same incident

    1. 30%
    2. 35%
    3. 40%
    4. 45%
  • 13. From a pack of 52 cards, two cards are drawn together, what is the probability that both the cards are kings

    1. 2/121
    2. 2/221
    3. 1/221
    4. 1/13
  • 14. A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour.

    1. 52/55
    2. 3/55
    3. 41/44
    4. 3/44
  • 15. Bag contain 10 back and 20 white balls, One ball is drawn at random. What is the probability that ball is white

    1. 1
    2. 2/3
    3. 1/3
    4. 4/3
  • 16. There is a pack of 52 cards and Rohan draws two cards together, what is the probability that one is spade and one is heart ?

    1. 11/102
    2. 13/102
    3. 11/104
    4. 11/102
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